document.write( "Question 1153437: 11. R & (R→ S), P & (P→ T)├ S & T\r
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Algebra.Com's Answer #775646 by MathLover1(20850) $\"\"$ $\"About$

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document.write( "1. R & (R→S), \r\n" );
document.write( "2. P & (P→T)\r\n" );
document.write( "         ├ S & T\r\n" );
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document.write( "3. R        1,simplification\r\n" );
document.write( "4. R→S      1,simplification\r\n" );
document.write( "5. S        4,3,modus ponens\r\n" );
document.write( "6. P        2,simplification\r\n" );
document.write( "7. P→T      2,simplification\r\n" );
document.write( "8. T        7,6,modus ponens\r\n" );
document.write( "9. S & T    5,7,conjunction\r\n" );
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document.write( "solved by tutor Edwin

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